Kerr - Sulphurets - Mitchell (KSM) Gold/Copper, Stewart — Build Almanac

Stage: Under constructionreported 30 Sep 2025
Value: C$8.4Bfrom BC Major Projects Inventory
Capacity: Not published
Owner: Seabridge Gold Inc.
Last checked: 30 Sep 2025

Stage timeline

ProposedNot reported
ApprovedNot reported
Under constructionreported 30 Sep 2025
CompleteNot yet

Open pit mine project, located approximately 65 km northwest of Stewart, consists of the copper porphyry deposits Kerr, Sulphurets, Mitchell and Iron Cap. Ore production of 80,000 to 120,000 mtpd over 25 years is expected, with 90,000 mtpd for the remainder of a 52 yr mine life.

From the project's description in B.C. Major Projects Inventory, Open Government Licence – British Columbia; shortened to whole sentences where long.

Facts

Type: Mines (metal) · Mines in British Columbia
Location: Stewart
Municipality: Stewart
Province or state: British Columbia, Canada · All of Canada

Nearby projects

Eskay Creek Mine · Mines · Proposed · about 19 km away
Snowfield Gold Project · Mines · On hold · about 32 km away
Jade Lake Power Project · Dams and power generation · Proposed · about 43 km away (an approximate location)
Treaty Creek Terminal - Transmission Load Interconnection (KSM) Project · Transmission lines · Under construction · about 43 km away (an approximate location)
Premier Gold Project · Mines · Proposed · about 46 km away

Latest updates

30 Sep 2025: first recorded here. BC Major Projects Inventory, 30 Sep 2025 edition.

Stage history

Under construction BC Major Projects Inventory: Construction started (as of 30 Sep 2025)

Sources

BC Major Projects Inventory: MPI project 2245 (as of 30 Sep 2025)

Licences: Open Government Licence – British Columbia. Full credits: Data sources and licences.

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